20881154

素因数分解:

$2^1\times 7^3\times {\mathrm{61}}^1\times {\mathrm{499}}^1$

素因数の和:583

約数の個数: 32

約数和(自身を含む): 37200000

約数和(自身を除く): 16318846

約数列:

[1, 2, 7, 14, 49, 61, 98, 122, 343, 427, 499, 686, 854, 998, 2989, 3493, 5978, 6986, 20923, 24451, 30439, 41846, 48902, 60878, 171157, 213073, 342314, 426146, 1491511, 2983022, 10440577, 20881154]

約数ペア:

[(1, 20881154), (2, 10440577), (7, 2983022), (14, 1491511), (49, 426146), (61, 342314), (98, 213073), (122, 171157), (343, 60878), (427, 48902), (499, 41846), (686, 30439), (854, 24451), (998, 20923), (2989, 6986), (3493, 5978)]